Fire-proof building



(No Model.)

E. lVI. BUTZ.

lFIRE PROOF BUILDING.

Patented Sept. 9, 1884.

FIG.

FIGIS.

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www0/U M@ D@ iwf( ATTORNEY UNITED STATES PATENT OEETCE.

EDWARD IVI. BUTZ, OF ALLEGHENY, PENNSYLVANIA.

FIRE-PROOF BUILDING.

SPECIFICATION forming part of Letters Patent No. 304,796, dated September 9, 1884.

Application filed April 4, 1884. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD M. BUTZ, a

citizen of the United States, residing at Allethe application of my invention; Fig. 2, a similar section through a construction in which a girder of different form is employed; Figs. 3 and 4, views in perspective of a pair of the tiles which inclose the girders of Fig. 1; and Figs. 5 and 6, similar views of a pair of the skewbacl; tile facings of Fig. 2.

Letters Patent of the United States No. 223,27@ granted and issued to me under date of January 6, 1880, set forth an improved tireproof construction iu which the supporting members are completely inclosed in incombustible material which is not a good conductor of heat, in order to protect them from distortion and displacement in the event of a coniiagration in the building of which they form part, and other improvements to the same end constitute the subject-matter of an application for Letters Patent by me filed December 13, 1883, Serial No. 114,427.

My presentinvention is an improvement upon those above recited; and its object is to further protect the metallic supporting members of fire-proof iioors and ceilings from injury by excessive heat, as well as to provide additional ceiling ornamentation.

The improvements claimed are hereinafter fully set forth.

In the practice of my invention a series of metallic beams or girders, A, is employed as the sustaining members of a lire-proof floor and ceiling, the ends of said girders bei ngsupported in the walls of the building in the usual manner. The girders A, intermediate between the side walls of the building, are inclosed either by tiles B, Figs. 1, 3, and 4, which surround both their webs and their upper and lower iianges, or by skewback tile facings C, Figs, 2, 5, and 6, which do not extend around their upper flanges. The girders adjacent to the side walls, A, are similarly inclosed on one side only, abutting on their' opposite sides against the side walls. The tiles B or facings, as the case may be, are inclined on theirouter faces, and constitute the abutments of the arches D, upon which is laid a bed of concrete, E, which incloses the upper iianges of the girders where facings C a-re employed, and upon which the iiooring F is laid.

The constructiomso far as above described, accords substantially with those of my patent and Aapplication before referred to, and under my present invention I afford additional protection to the girders A by forming on the inner side of each tile B or facing G, near the lower portion thereof, a trough or recess, Z), from which an upwardly-inclined passage, b', extends to the outer side of the tile or facing. rI`he inner faces of each pair of tiles or facings abut below the recesses b, thereby forming inclosed spaces below the bottoms of the girders throughout the lengths thereof. The girders and tiles or facings being placed in position, said spaces are filled with any suitable material-suchas plaster-of-paris, Tiel lime, or the like-which possesses the qualities of being lire-proof and of solidifying from a semiliquid state, in which condition it is poured into the passages b', and, filling the recesses b, forms, when solidified, a protecting casing for the lower flanges of the girders A, above and additionalto the lower portions of the tiles B or facings C. p

The inner facesof the sections of the arches I) may be nickedzor recessed, as indicated in Figs. lJand 2, or may be grooved or channeled, as shownjn my application aforesaid, to facilitate the attachmentof the plastering d of the ceiling; and to provide additional ceiling ornamentation I form upon the outer lower angles of the tiles B and facings C relieved moldings b`, `of any suitable and desired design, said moldings serving to neatly finish the spaces'between the arches, and being supplemented by moldings b3 on the side walls.

I claim herein as my invention- 1. In a fire-proof construction, the combination of a beam ,or girder, a tile or facing fitting against one side of and below the bottom IOO thereof7 and a filling of solidiliable lire-proof' 8. A tile or Yfacing for girders in lire-proof material inserted in a trough or recess in the constructions, having an inclined` outer i'aee, tile or facing between the sanie and the botan inner face adapted to lit against the side of 15 toni ofthe girder7 substantially as set forth. a beain or gil-der, and a relieved molding 2. A tile or faeing for girders in fire-proof formed at thejunetion of its outer and lower constructions', having an inelined outer face, faces7 substantially as set i'oitl an inner faee adapted to it against the side of In testimony whereof I havel ereunto set my a beain or girder, and a trouglror recess lohand. Gated in said inner face below the portion which is designed to iit against the O`irder, and eoinniunieating by a passage with the outer faee, substantially as set forth.

EDW'ARD ill. BUTZ.

lllitnesses:

J. SNoWDnN BELL. R. H. flurriaisny 

